Vacuum cleaning device



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v v v v v v March 21, 1933. F. wlELATz VACUUM CLANING DEVICE Filed Jan.

Y intimate contact with eac Patented Mar. 21, '1933 PATENT oFFlcE FREDWIELATZ, CHICAGO, ILLINOIS.

'vacuum CLEANING DEvIcE Application led January I1, 1932. vSerial No.585,826.

This invention relates to vacuum lcleaning devices, and moreparticularly toa brush attachment whereby dust andvgrit may be removedfrom places inaccessible to the ordi- 3 nary attachment devices usuallyprovided with the equipment of .vacuum cleaners,

. the object being to provide a simple and inexpensive, yet practicallydesigned. and

highly efiicient device, and to attain certain 13 advantages as willhereinafter more fully appear in the following description.

The invention consists in the novel general structure and in the artsand combinations 'and arran ements oi) parts hereinafter del'scribed anpointed out with particularity in the appended claims.

In the accompanying drawing, forming part of this specification, andillustrating practical adaptations of the invention,-

Fig. 1 is an elevationalview;

v Fig. 2 is a longitudinal section, taken on p or about the line 2-2 ofFig. 1;

Fig. 3 is a transverse section on the line 3-3ofFig.1;. .Y Fig.- 4 isa'fragmentary longitudinal section of a modified construction; and

Fig. 5 is a transverse section on the line 5--5 of Fig. 4.

Referring now to the drawing, the numer- '30 al 10 designates generallyanozzle member having a tubular shank portion 1I tov which is attached aflexible tube of rubber or other suitable material 12, which latter, in4use, is

in turn connected to the suction portionota vacuum cleaner of any kind(not shown),

Theouter end portion 13 of the nozzle 1Q is flattened somewhat, thereby`producing a pair of restricted longitudinal passage-v ways 14, 15, atopposite sides, said passage-l 43 ways being preferably f elliptical incrosssection, as shown more clearly in Fig. 3 of the drawings, and beingseparated y the truly liattened medial portions 16 which are pressedinwardly from o posite sides into il other. The extreme end portions 17of the nozzle member are compressed to ether in `the same plane as theintermediate epressed longitudinal portions 16, said portions 17 beingwelded or otherwise. secured together, if desired, but

in some cases, where the metal is of a certain gauge, the inherentrigidity thereof may be depended -upon` to maintain the end ofthe.nozzle in this closed conditiony without the- ,employment of anylspecial means of astemng. A

The pair ofv restricted 'tubular end portions 14, 15;, are provided withapertures 18 at o posite sides, said apertures being preferab y--arranged. in staggered relation, as shown more clearlyl in Fig'. 1 ofthe drawing, but, obviously, they may be arranged otherwiseI and formed-as elongated slots instead of circular aperturesl as shown. Brushelements comprising elongated rela- @5 tively 'narrow body plates 19,carrying the tufts of bristles '20, are secured in the depressedVportions or. valleysv 16 between the pair of restricted tubular portions14, 15, said brush body plates 19 being secured in 70 place in anyapproved manner, asv b means of bolts, screws, pins, rivets, or t e wellknown present daywelding methods', and the bristlesbeingpreferablyarranged in stag-'- gered relation inn two or morelongitudinal 7-5 rows, as shown. l

In the modification shown in Figs. 1'to 3, inclusive, of the drawing,the pair of tubular portions 14, 1,5, "are of substantially the samecross-sectional area throughout their length, but inthe modificationillustrated in Figs. 4 and `5,- the end ortion of. the nozzle whereinthe correspon ing pair oftubular portions 14* and 15'L arelocated, istapered 1 or wedge-shaped. In this modification the a5 end portions 17of the nozzle are closed, as

in the structure shown in Fi 1 to 3 of the drawing, but the intermediateattened V portions 16 between` theside portions 14 and 15?i are spreadapart at an inclination 90 with respect; to each other, the spacewidening toward the shank portion 11, and the restricted sideltubularvortions 14" and 15l being correspondingly ared in the same direction,and being also open to communica-v tion with each other throughout theirlength,

by virtue of the s acing of the portions 16.. Ingorder to avoiproducingan undue obstruction within the device, Aand at the sametimefsupport the intermediate flattened portions 16 in their spacedrelation, a strut 21' in the form of a sleeve is provided, through whicha securing bolt or rivet 221s passed, asshown more Vclearly in Fig. 4'ofthe draw- 5 ing. As far as the'abrush elements 19, 20, .and the means ofattachment to the vacuum cleaner or suctiondevice are concerned, theseand other incidental features may be the same in the two modifications.

The device of the present invention is readil inserted and manipulatedin spaces ditcu t ofv access, particularly in between the legs orsections of radiators of steam and hot water heating systemsland thelike, the

particles of dirt and mattertol be removed being loosened by thebrushing action of the- -bristles andthe loosenedfmaterial being drawninto the tubular portions 14, 155 or 14, 15, as the case may be,through'.` the 21,00 eningsy 18, and delivered to the vacuum.

' c eaner through the hose pipe 12, as in the of ordinar nozzles andattachments.

v In addition to t e advanta es of eiiiciency of v the device,there isa-furt er advantage-in the economical production of the device, in thatit ma be readily formed from a singlej blank of s eet material or.ressed into shape f froma single piece of or inary commercial l tubing,the shank ofthe device being provided by the prefnrmed'iube ma the jworking -portion of-I the nozzle being pron. vided b compressing andreforming the tube, w ich may be conveniently accomplished in a suitabledie or rolling machine process;

While the devices illustrated in the drawingI embodyl practicaladaptations of the invention, 4"obviously -many further modifi- 'ycatiqis niay be made, in the structure without -450 inthe leastdeparting fromthe spirit and character described, comprising a tubularstricted tubular side portions, said restricted tubular portions bein artured on opp'osite sides of the nozz e e ement," the lon tudinal medialportion of the original tu being completely flattened ually fromoppositesides of the nozzle ketleni'ent, providlng depressions between saidrestricted tubular` side portions, ando posed external brush elements insaid medlal flattened depressions.

41A suction cleaner attachment ofthe 85 nozzle member, the base shankportion of which is of substantially cylindrical cross section, theforward portion of the devicel being artially flattened and providedwithl lateral yv spa-ced longitudinal internal passageways, the forwardportion of the nozzle member being apertured communicably. with saidinternahpassageways, the medial longitudinal ortion of the device beingfurther iiattene and y a brush element Adis, osed longitudinally on saidfurther giiatten portion in interposed working relation medially.between said apertured portions.

n In testimony whereof I have signed my name to this specification.

FRED WIELATZ.

scope Iofthe invention as defined by the appended claims. The invention,therefore, .is not limited to the specific construction and arrangementshown.l

'46, Having thus described my invention,

` what I claimas new and desireto secure by Letters'Patent is: I

1. A'suction nozzle for cleaning devices, formed with a pair oflaterally spaced i 50 longitudinal internal passageways and .pro-vAvided with apertures von opposite sides in communication with saidpassageways, and` opposed longitudinally extended brushing elements onthe opposite sides of the nozzle 55' and interposed medially betweensaid passageways.

2. A suction nozzle for cleaning devices,

. comprising a tubular shank portion merging communicably with abranched pair of parlo allel laterally 'spaced longitudinally extendingrestricted tubular portions, said nozzle being apertured on oppositesides throughout the length of each of said restricted `tub-v ularportions, and opposed Iexternal brush elements on opposite sides,l ofthe nozzle

